There're two got same name, same spec, but different shape. One on intake hose/adapter to throttle body, it's called intake air temperature sensor. Another can see through from front bumper lower section, in front of air conditioner condenser, on the bracket of Power Steering cooler. It's called Ambient temperature sensor. If you don't see it, it's gone, the wire or connector is quite easy corroded.
Over by the air filter's box.
on the A4's, they are typically under the front bumper cover closer to the drivers side.
lets warm air in when it reaches a certain temperature.
The IAT ( Intake Air Temperature ) sensor is located on the back of the air cleaner housing.
That would depend on which temeprature sensor you are asking about. Is it the coolant temperature sensor or the air charge tenerature sensor you are asking about?
under your air filter
intake manifold just beyond the throttle body
The IAT (intake air temperature) sensor should be in the air intake snorkel between the MAF (mass air flow) sensor and the throttle body.
On my 1995 Ford Explorer - 4.0 L - OHV - V6 , the intake air temperature sensor is in the big rubber air intake tube , facing to the rear , near the throttle body . A 1996 - V6 - should be the same
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in the Aircleaner box , little black pointy thing
An air temperature sensor in an automobile is very important. The temperature sensor detects the external temperature. The external temperature is important because of the manner in which the car's computer mixes air and water.